Question

I need a well explained answer

Resistance of a metal wire of length is 26ohm at 20°C.If the diameter of the wire is 0.3 mm. What will be the resistivity of the metal at that temperature?







[(Purple you my Sisos forever )]​

Answer 1

Answer:

Explanation:

R = P $\frac{l}{A}$

P = $\frac{RA}{l}$= $\frac{26 * [0.6^{2}] \frac{\pi }{4} * 10^{-6} }{1}$

= 1.83 * $10^{-6}$  Siemen/meter